FPUS65 KTFX 060938 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 337 AM MDT Wed May 6 2026 MTZ301>314-316>318-070000- Central Montana- National Weather Service Great Falls MT 337 AM MDT Wed May 6 2026 .TODAY...Sunny. Highs 65 to 75...50 to 60 in the mountains. .TONIGHT...Mostly cloudy. Slight chance of thunderstorms after midnight. Lows 40 to 50...35 to 45 in the mountains. .THURSDAY...Mostly cloudy then becoming partly cloudy. Chance of rain showers. Slight chance of thunderstorms in the afternoon and evening. Highs 60 to 70...50 to 60 in the mountains. .FRIDAY...Partly cloudy. Chance of rain showers. Lows 40 to 45. Highs 65 to 75. .SATURDAY...Mostly cloudy. Chance of rain showers. Lows 45 to 50. Highs 55 to 65. .SUNDAY...Partly cloudy. Lows 35 to 40. Highs 65 to 75. $$ MTZ315-319>330-070000- Southwest Montana- National Weather Service Great Falls MT 337 AM MDT Wed May 6 2026 .TODAY...Sunny. Highs 60 to 70...50 to 60 in the mountains. .TONIGHT...Increasing clouds. Slight chance of thunderstorms after midnight. Lows 35 to 45. Gusts up to 35 mph in the evening. .THURSDAY...Mostly cloudy in the morning then becoming partly cloudy. Chance of rain showers. Slight chance of thunderstorms in the afternoon and evening. Highs 60 to 70...50 to 60 in the mountains. Northwest winds around 20 mph in the afternoon. .FRIDAY...Mostly cloudy. Lows 35 to 40. Highs 60 to 70. .SATURDAY...Partly cloudy. Lows 35 to 45. Highs 55 to 65. .SUNDAY...Partly cloudy. Lows 35 to 40. Highs 65 to 75. $$